LOL, when you have no console exclusives you find any reason to praise multi console 3rd party games on a console maybe 10% have on here, sucks for us og xbone owners that bought all that cloud making every xbone 5x more powerful.

I believe you can’t at the moment. OG Xbox one games as of yet do not have online MP too the best of my understanding. I see MS owned OG Xbox games getting mp if the games in question get good engagement and digital sales.

The multiplayer was shut off for Original Xbox games years back, assume prior to them thinking Backwards Compatibility was possible. They've mentioned it's too difficult/not worth it to emulate the servers. Perhaps one day they might, there's this special setup you can do to play the games online but I'm not familiar with the process.